Weather on September 25 in Istanbul
Historical weather data for September 25 in Istanbul, Turkey
Based on 54 years of data from ISTANBUL
About This Date
September 25th in Istanbul, Turkey typically brings pleasant fall weather, with average highs around 25°C and lows near 16°C. Over 54 years of records, the warmest September 25th was in 1984 (25°C average), while the coldest was 1992 (15°C) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 19% of September 25th dates historically, with the wettest September 25th recording 0.8" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for September 25th in Istanbul? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 27°C (80°F) | 18°C (64°F) | 0" |
| 2024 | 28°C (82°F) | 16°C (61°F) | 0" |
| 2023 | 29°C (84°F) | 21°C (69°F) | -- |
| 2022 | 24°C (76°F) | 14°C (58°F) | -- |
| 2021 | 24°C (75°F) | 16°C (60°F) | 0" |
| 2020 | -- | 18°C (65°F) | 0.13" |
| 2019 | -- | 17°C (63°F) | 0.13" |
| 2017 | 28°C (82°F) | 18°C (64°F) | -- |
| 2016 | 23°C (74°F) | 13°C (56°F) | 0" |
| 2015 | 29°C (84°F) | 20°C (68°F) | 0" |
| 2014 | 24°C (75°F) | 12°C (54°F) | 0" |
| 2013 | 28°C (82°F) | 10°C (50°F) | 0" |
| 2012 | 32°C (89°F) | 11°C (52°F) | 0" |
| 2011 | 27°C (81°F) | 16°C (60°F) | 0" |
| 2010 | 29°C (84°F) | 17°C (63°F) | 0" |
| 2009 | 24°C (76°F) | 14°C (57°F) | 0" |
| 2008 | 24°C (75°F) | 13°C (55°F) | 0" |
| 2007 | -- | 13°C (56°F) | 0.08" |
| 2006 | 22°C (71°F) | -- | 0.25" |
| 2005 | 23°C (74°F) | 13°C (55°F) | 0" |
| 2004 | 32°C (89°F) | 17°C (63°F) | 0" |
| 2003 | 24°C (76°F) | 16°C (61°F) | -- |
| 2002 | 29°C (84°F) | 21°C (70°F) | 0" |
| 2001 | 31°C (87°F) | 18°C (65°F) | -- |
| 2000 | 17°C (63°F) | 14°C (57°F) | 0.4" |
| 1999 | 25°C (77°F) | 14°C (58°F) | -- |
| 1998 | 23°C (73°F) | 14°C (58°F) | 0" |
| 1997 | 20°C (68°F) | 13°C (55°F) | -- |
| 1996 | 26°C (79°F) | 18°C (64°F) | -- |
| 1995 | 22°C (71°F) | 14°C (58°F) | 0.2" |
| 1994 | 28°C (82°F) | 20°C (68°F) | -- |
| 1993 | 27°C (80°F) | 13°C (56°F) | -- |
| 1992 | 18°C (65°F) | 12°C (53°F) | 0.6" |
| 1991 | 27°C (80°F) | 17°C (63°F) | -- |
| 1990 | 26°C (78°F) | 18°C (65°F) | -- |
| 1989 | 25°C (77°F) | 15°C (59°F) | -- |
| 1988 | 23°C (73°F) | 14°C (57°F) | 0.1" |
| 1987 | 24°C (75°F) | 12°C (54°F) | -- |
| 1986 | 27°C (80°F) | 14°C (57°F) | -- |
| 1985 | 27°C (80°F) | 17°C (63°F) | -- |
| 1984 | 31°C (87°F) | 19°C (67°F) | -- |
| 1983 | 22°C (71°F) | 11°C (51°F) | -- |
| 1982 | 26°C (79°F) | 17°C (62°F) | 0" |
| 1981 | 23°C (74°F) | 16°C (61°F) | -- |
| 1980 | 22°C (71°F) | 13°C (56°F) | -- |
| 1979 | 30°C (86°F) | 18°C (65°F) | -- |
| 1978 | 23°C (74°F) | 12°C (54°F) | 0" |
| 1977 | 19°C (67°F) | 12°C (53°F) | 0.8" |
| 1976 | 21°C (69°F) | 13°C (56°F) | 0.6" |
| 1975 | 24°C (76°F) | 17°C (63°F) | -- |
| 1974 | 27°C (81°F) | 17°C (62°F) | -- |
| 1973 | 27°C (81°F) | 18°C (64°F) | -- |
| 1972 | 26°C (79°F) | 13°C (56°F) | -- |
| 1971 | 22°C (71°F) | 16°C (61°F) | -- |